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creativ13 [48]
3 years ago
12

Seedless bananas were probably first caused by a blank

Biology
1 answer:
lana [24]3 years ago
6 0
In animals and plants, there are two pairs of chromosomes - one set from a male and the other set from a female. But occasionally, the original fertilized cell doesn't quite divide correctly and more than two sets arises. The fertilized cell continues to divide with the result that all the cells have the extra set of chromosomes. This happens much oftener in plants and the plant will be sterile and can't form seeds.
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Certain kinds of shells are always found in rock layers lower than layers with plant fossils. Dinosaur fossils show up only in l
zvonat [6]

Answer:

this shows that at one point these animals lived on the surface because there were plants for them to eat

Explanation:

Hope this helps you out!!!

If so please give brainliest <3

6 0
2 years ago
Functions of astrocytes include all of the following except
Neporo4naja [7]

The question is incomplete. The complete question is as follows:

Functions of astrocytes include all of the following, except

A) performing repairs in damaged neural tissue.

B) guiding neuron development.

C) functioning in action potential transmission.

D) maintaining the blood-brain barrier.

E) creating a three-dimensional framework for the CNS.

Answer:

Functioning in action potential transmission.

Explanation:

Astrocytes may be defined as the glial type star shaped cells present in the central nervous system. They envelope the synapse and can function with millions of neuron at a time.

Astrocytes are involved in the structural support in the brain and can repair the damaged and wear nerves tissue. Their main function is acting as blood brain barrier. The action potential transmission is mainly done by neurons and not by the astrocytes cells.

Thus, the correct answer is option (c).

7 0
3 years ago
The graphic shows the citric acid cycle. A diagram of the citric acid cycle is shown. Acetyl C o A enters the citric acid cycle
vagabundo [1.1K]

Answer:

It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.

Explanation:

Acetyl-CoA(2C) associates with oxalacetate(4C) to form citric acid(6C). Then through redox reactions, CO2 molecules result from decarboxylation (COOH becomes R-(R1)CH-R2). And through dehydrogenation H2 molecules are incorporated in NADH+ in FADH2, resulting in the 4-carbon molecule at the beginning (oxalacetate). That's why it's called a cycle(Kreb's cycle or citric acid cycle)

3 0
3 years ago
Read 2 more answers
Todas las bacterias son perjudiciales para el resto de seres vivos y producen enfermedades? Justifica tu respuesta.
NISA [10]
No todas las bacterias son perjudiciales los lactobacilos son bacterias que ayudan en la digestión
8 0
3 years ago
A scientist thinks he has discovered a drug that interferes with the functioning of a virus in the human body. to effectively bl
velikii [3]
Oooh this is a hard one but i think its C
6 0
3 years ago
Read 2 more answers
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