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satela [25.4K]
3 years ago
14

What two things do scientists use to study the evolutionary trends in vertebrates​

Biology
1 answer:
laiz [17]3 years ago
4 0

Fossil Record and characteristics of today's chordates

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A tall pea plant (Tt) is crossbred with another tall pea plant (Tt). The following Punnett square shows the separated alleles fo
bazaltina [42]

Answer: 1-TT, 2-Tt, 3-Tt, 4-tt

Explanation: It is pretty simple. you just have to match every letter together. Also, the genotype of this is 50% Tt (which is crossbred), 25% TT (which is tall), and 25% tt (which is short).

I hope this helped you out!

5 0
3 years ago
Read 2 more answers
Part A: If one follows 70 primary oocytes in an animal through their various stages of oogenesis, how many secondary oocytes wou
olga nikolaevna [1]

Answer:

<u>Part A</u> : 70 secondary oocytes will be formed.

<u>Part B</u> : 70 first polar bodies will be formed.

<u>Part C</u> : 70 ootids will be formed.

Explanation:

During oogenesis growth maturation of a single oogonium produces one primary oogonium.

the primary oogonium then undergoes meiosis -1 and produces  one secondary oocyte and first polar body.

The secondary oocyte then undergoes meiosis - 2 and forms an ootid and second polar body.

The ootid then differentiates into the ovum.

As in the above scenario , 70 primary oocytes are present , they undergo meiosis-1 and produces 70 secondary oocytes and 70 first polar bodies. Hence answers of part A and B is 70.

As 70 secondary oocytes are formed , they undergo meiosis -2 and forms 70 ootids which then differentiate in 70 ovums.

8 0
3 years ago
The muscles of the digestive tract are called smooth cardiac muscles? true or false
Blababa [14]

Answer:Smooth muscle or “involuntary muscle” consists of spindle shaped muscle cells found within the walls of organs and structures such as the esophagus, stomach, intestines, bronchi, uterus, ureters, bladder, and blood vessels.

Explanation:

Smooth muscle or “involuntary muscle” consists of spindle shaped muscle cells found within the walls of organs and structures such as the esophagus, stomach, intestines, bronchi, uterus, ureters, bladder, and blood vessels.

8 0
3 years ago
What is the difference between a concave and convex mirror?
IceJOKER [234]

Answer:A concave mirror is a spherical mirror with the surface of reflection is curved in an inward direction while a convex mirror is a spherical mirror with a reflecting surface with an outward bulge.

Explanation:

Hope this helps :D

3 0
3 years ago
Read 2 more answers
“The study of cell biology is directly
Marat540 [252]

Answer:

I agree.

Explanation:

Cell biology and technology are so connected that there is even a science called biotechnology, which is the literal union of these two strands.

Biotechnology is an area that aims to develop biological products and processes with the help of science and technology. The United Nations (UN) classifies biotechnology as "any technological application that uses biological systems, living organisms, or derived beings, to manufacture or modify products or processes for specific uses".

Biotechnology covers different areas of knowledge that include basic science (such as molecular biology, microbiology, etc.), applied science (such as immunological, chemical and biological techniques) with different technologies (such as information technology, robotics and process control).

3 0
3 years ago
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