1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ludmilka [50]
3 years ago
8

A man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children ma

y have all blood types EXCEPT Type A)
A. B) A

B. Eliminate

C) B.

D) O.

As scientists have developed more productive crop varieties, farmers have switched from growing many traditional varieties to new high-yield varieties. For example, in Peru, the Indians once grew 500 native varieties of potatoes. That number has been reduced to about twenty major potato varieties, worldwide.

Why is it potentially dangerous to reduce the number of crop species in potatoes?

A) It reduces the variety of crops available for human diets.

B) It requires a larger investment than small farmers can make.

C) It makes the overall crop more susceptible to pests or disease.

D) It could reduce or cause the extinction of some predatory insects.

All of the statements were part of the original cell theory proposed by Schleiden and Schwann with the EXCEPTION of

A) all cells come from other cells.

B) the cell is the most basic unit of life.

C) all living things are composed of one or more cells.
Eliminate

D) viruses are not living since they are smaller than a cell.

Infectious diseases are caused by organisms called pathogens. Pathogens can be bacteria, viruses, fungi, or protists. One common disease caused by a fungus is

A) the flu.

B) HIV/AIDS.

C) athlete's foot.

D) Parkinson's disease.

Your science teacher has asked the class to make a cell city model. Which building or business in the city could represent the mitochondria, and why?

A) city dump - waste storage

B) city hall - control center

C) roads - transportation system

D) power company - produces energy

Which structures are found in the human female reproductive system?

A) ovaries and uterus

B) ovaries and testes

C) prostate and uterus

D) uterus and vas deferens

In organisms that reproduce sexually, meiosis produces the male and female haploid gametes. What is the name of the process that joins the two haploid cells together to form a diploid?

A) fertilization

B) fusion

C) ovulation

D) spermatogenesis

The fossil beds at the Falls of the Ohio, located between Louisville, Kentucky and Clarksville, Indiana, are world-renowned. There are 212 species of corals known found in these fossil beds. Consider the environmental conditions under which most coral lives. Which scenario MOST LIKELY describes the ancient environment of the Falls?

A) dry, hot, and near the equator

B) temperate, northern latitudes, underwater

C) tropical, near the equator, and underwater

D) tropical, at the boundary of two tectonic plates

What is the relationship between the DNA and protein in a cell?

A) DNA is made up of proteins that are synthesized in the cell

B) Protein is composed of DNA that is stored in the cell

C) DNA controls the production of proteins in the cell

D) The cell is composed of DNA and protein

One of the parents of a child with phenylketonuria (PKU), which is caused by autosomal recessive alleles. The other parents does not have the PKU alleles. What is the chance that the couple will have a child with phenylketonuria 9PKU)?
A) 0%
B) 50%
C) 75%
D) 100%

Which of the following best compares the structures of lipids and carbohydrates?

A) Both are made up of monnosaccharide monomers, but lipids are hydrophobic and carbohydrates are hydrophophilic.

B) Both consist of carbon and hydrogen, and oxygen, but carbohydrates have repeating structurual units and lipids do not.

C) Both have carbon and hydrogen, but carbohydrates have repeating structural units and lipids do not.

D) Both have a carbon backbone, but lipids also have an amino group and carbohydrates have a carboxylic group.

Which of he following best describes the difference between the functions of nucleic acids and enzymes?

A) Nucleic acids are used as the building blocks of proteins, while enzymes are used as the building blocks of phospholipids.

B) Nucleic acids contain the genetic code for protein synthesis, while enzymes catalyze chemical reactions.

C) Nucleic acids inhibit biochemical reactions, while enzymes provide structural support in cells.

D) Nuceic acids transmit signals that begin biochemical processes, while enzymes convert carbohydrates into lipids and proteins.
Biology
2 answers:
Ksju [112]3 years ago
6 0
The answer from: <span>Infectious diseases are caused by organisms called </span>pathogens<span>. Pathogens can be bacteria, viruses, fungi, or protists. One common disease caused by a fungus is attlethes foot


</span>
storchak [24]3 years ago
4 0

The answer from: Infectious diseases are caused by organisms called pathogens. Pathogens can be bacteria, viruses, fungi, or protists. One common disease caused by a fungus is attlethes foot

You might be interested in
How do forestry, industry and agriculture contribute to water pollution? Write one complete sentence for each. *
Darya [45]

High quantities of nutrients in water from industrial crop fertilizers and animal waste cause excessive aquatic plant growth — a process known as “eutrophication,” which, in turn, causes “hypoxia,” or water that is low in oxygen. Harmful algal blooms (or HABs) occur when aquatic algae grow rapidly out of control.

5 0
3 years ago
How many divisions will it take for a cell to create at least 50 cells?
ella [17]
I think the answer is 2
6 0
2 years ago
Hormones play an important role in regulating blood glucose levels. what is an example of this?
Ber [7]
The human body wants blood glucose (blood sugar) maintained in a very narrow range. Insulin and glucagon are the hormones which make this happen. Both insulin and glucagon are secreted from the pancreas, and thus are referred to as pancreatic endocrine hormones. The picture on the left shows the intimate relationship both insulin and glucagon have to each other. Note that the pancreas serves as the central player in this scheme.  It is the production of insulin and glucagon by the pancreas which ultimately determines if a patient has diabetes, hypoglycemia, or some other sugar problem.(i hope this can help you) :)
3 0
3 years ago
Which term refers to the movement of water molecules through selectively permeable membrane
Contact [7]

Answer:

That would be the definition of osmosis

3 0
3 years ago
Members of the phylum Actinobacteria have had a profound impact on human health over the course of civilization. One member of t
Drupady [299]

Answer:

The correct answer would be - mycobacterium, and streptomyces.

Explanation:

Actinobacteria is a phylum that consists of a group of gram-positive bacteria with cytosine and guanine content in their DNA. These bacteria can be aquatic or land bacteria. Actinobacteria do not have cell wall however they make a non-sptate and mycelium.

Mycobacterium is one of the genera of the actinobacterium phylum. This genus includes pathogenic species in it that cause deadly diseases in humans and other mammals such as leprosy and tuberculosis Whereas streptomyces is another genus of the actinobacteria that is yielded the very first drug to fight with the ancient scourge.

Thus, the correct answer is - mycobacterium and streptomyces.

8 0
3 years ago
Other questions:
  • The Endosymbiotic theory states that chloroplast and mitochondria evolved as a result of
    6·1 answer
  • Give an example of a scientific investigation that would require both observations and experiments
    10·1 answer
  • if a plant is growing by incorporating carbon into its body, is the rate of photosynthesis or the rate of cellular respiration h
    5·1 answer
  • Because it has no introns, researchers prefer to use ____ when working with human genes.
    6·1 answer
  • In epithelial tissue, what is this bottom layer called?
    5·1 answer
  • A water-soluble hormone approaches its target cell. Which of the following happens first?
    13·1 answer
  • Crossing over is often reduced around centromeric regions of chromosomes. If you were trying to construct a genetic map of two l
    9·1 answer
  • EXPLAIN HOW CARBON MOVES
    13·1 answer
  • Select all that apply.
    11·2 answers
  • I just need help with these 4 questions
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!