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
icang [17]
3 years ago
15

What are traces or remains of organisms that lived in the past?

Biology
2 answers:
Marina86 [1]3 years ago
7 0
D. Fossils
adaptions, mutations, and traits are all characteristics, not actual remains
marusya05 [52]3 years ago
6 0
B.fossils if I get it wrong I'm sorry
You might be interested in
Apply the Law of Conservation of Matter to the water cycle
Tamiku [17]

Answer:

water is technically mater and matter is involved in the water cycle to get it the way it is

6 0
3 years ago
Individuals III-3 and III-4 are expecting their first child when they become aware that they both have a family history of this
ad-work [718]

The genealogy tree which is missing from the question is in the attachment.

Answer: 1) P1 = \frac{1}{2}; 2) P2 = \frac{1}{2}; 3)P3 = \frac{1}{16}

Explanation: 1) According to the genealogy tree, the individual III-3 has a P1 = 1/2, because each of the parents are heterozygous for the condition, since one of the ofspring is affected.

2) For individual III-4, one of the parents is heterozygous for the condition, so the probability of being a carrier is P2 = 1/2.

3) Now, for individual IV-1 be affected, the parents has to be carrier. So, this probability, depends on the probability of each parent being heterozygous and that the individual will be carrying the condition, which means:

P3 = 1/2 · 1/2 · 1/4 = 1/16.

The probability of having the condition is 1/16 or 6.25%.

4 0
3 years ago
1the diagram shows the normal sequence of genes in a particular chromosome which chromosome could have resulted from a deletion
sleet_krkn [62]

<u>Answer</u>:

1. A. abc*ghijklmn

Through deletion, the part of the chromosome -def* was lost.

2. C. 0%

Two parents with B and AB will produce children with A, B or AB blood types. Never an O child. In order for this to be possible, the father would have to be A, B or O.

3. John

The gel electrophoresis  method will separate the DNA according to molecular size. This pattern is unique to each individual.

4. B. Abnormal female - 47 chromosomes.

On chromosome pair 21 it can be observed a third copy of this chromosome. This is caused by the Down syndrome, also known as trisomy 21. It is a female, because the last chromosome pair, number 23 has two identical copies, commonly denoted as XX.

6 0
3 years ago
Identify and analyze the way fossil fuel combustion has changed the composition of Earth's atmosphere, and the way this change h
mario62 [17]
As these gases enter the atmosphere it thickens a layer over Earth which traps greenhouse gases and other gases that then leads to climate change because our hair is being clogged
So basically it’s a chain affect
3 0
3 years ago
What makes sponges unique among animals?
Cerrena [4.2K]
They are similar in the sense that they are multicellular , lack cell walls , and produce sperm cells. However they are unique as they lack true tissues and organs and have no body symmetry.
7 0
3 years ago
Other questions:
  • To test how fertilizer affects tomato plants, a farmer divided a field of young tomato plants into 10 plots of equal size. The f
    6·1 answer
  • Which of the following best describes an Annelid's segmentation?
    11·1 answer
  • Marine organisms that are euryhaline would most likely be found in which environment? deep ocean open ocean coastal estuary hydr
    7·2 answers
  • At the boundary of every cell, the __________ functions as a selective barrier that allows sufficient passage of oxygen, nutrien
    10·1 answer
  • Explain why mutation and natural selection make developing new flu vaccines every year necessary
    12·1 answer
  • BIOLOGY 1 QUESTION HELP
    7·1 answer
  • When analyzing the results of a scientific experiment, Kevin should base his conclusion on
    11·1 answer
  • what is a carrier? what is the genotype for someone who is carrier for a disease but they don't have it themselves
    6·1 answer
  • What is:<br><br>-Biology <br>-Chemistry <br>-Physics​
    8·1 answer
  • Which would most affect the health of fish in a Local pond
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!