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
serious [3.7K]
3 years ago
12

Identify how temperature is a limiting factor for polar bears

Biology
1 answer:
RoseWind [281]3 years ago
5 0

Global warming is heating up their environments and melting away their glacier habitat. If their home ever got completely rid of ice they'd die of a heat stroke.
You might be interested in
Which particles is the fundamental unit of all matter in both living and nonliving
erica [24]

Answer:

atoms

Explanation:

all things in the universe are made of atoms and they are considered the fundamental unit of matter.

non-living things are composed of different compounds and molecules.

living things are made of cells, and cells themselves are made of different molecules. So living things are also made of atoms.

5 0
3 years ago
Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
6 0
3 years ago
Dr. Paul Ehrlich observed that the differential stain developed by Dr. Gram suggested bacteria could be killed differentially by
Alex787 [66]

Answer:

The correct answer is Glycocalyx, ribosome and cell wall.

Explanation:

Glycocalyx is mainly found in bacteria that makes a protective covering outside the cell wall in the form of capsule of bacteria and provide protection to bacteria from host immune cell.  

Bacterial ribosomes are different from human ribosomes. Bacteria contain 70s ribosome while humans contain 80s ribosome so ribosomes are potential targets for many drugs present today.

Bacterial cell contain cell wall which is made up of peptidoglycan or lipopolysaccharide but human cell does not contain a cell wall, therefore, many drugs are designed to destroy cell wall of bacteria like penicillin.

So glycocalyx, ribosomes, and cell wall can be potential targets for Dr. Ehrlich's "magic bullets" due to significant difference or absence from humans.

4 0
3 years ago
Explain the role of air pressure, air masses and weather fronts in the formation of meteorological events such as thunderstorms,
PtichkaEL [24]

Hi,

here u go!!

Air masses are slowly pushed along by high-level winds, when an air mass moves over a new region, it shares its temperature and humidity with that region. ... For example, when a colder air mass moves over warmer ground, the bottom layer of air is heated. That air rises, forming clouds, rain, and sometimes thunderstorms.

hope it helps!!

5 0
3 years ago
What type of mixture is blood? solvent, suspension, solution, or a buffer
ladessa [460]

Answer:

suspension

Explanation:

colorless fluid holds blood cells in suspension.

3 0
2 years ago
Other questions:
  • Please help. I can't seem to understand this.
    15·2 answers
  • Rain, hail, sleet and snow are all examples of A) deposition. B) frozen water. C) precipitation. D) tornado warning signs
    6·2 answers
  • Which organisms capture atmospheric nitrogen for the process of nitrogen fixation?
    13·1 answer
  • 24. Why is pure water neutral?
    8·1 answer
  • In an experimental investigation, the variable that the researcher changes or manipulates in order to see its effects is called
    13·1 answer
  • Help please I’m stuck
    10·1 answer
  • Which best describes this type of reaction?
    5·1 answer
  • The Baltimore Oriole has the scientific name of icterus galbula. What taxonomic
    5·1 answer
  • Which statement is true about genetic information? A gene is a section of DNA and is found on a chromosome in the cell's nucleus
    9·1 answer
  • Explain how both passive
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!