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Ipatiy [6.2K]
3 years ago
6

What occurs during the gametophyte stage?

Biology
2 answers:
tresset_1 [31]3 years ago
8 0

Answer:

its the sexual stage for plants

max2010maxim [7]3 years ago
7 0

Answer:

In the gametophyte phase, which is haploid (having a single set of chromosomes), male and female organs (gametangia) develop and produce eggs and sperm (gametes) through simple mitosis for sexual reproduction. ... When the spore wall cracks under appropriate moist conditions, the fern gametophyte is formed.

Explanation:

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A scientist is studying some developing eggs from an ocean sample. The early embryos have divided only a few times, and all cell
Kay [80]

Answer:

The correct answer is - deuterostomes.

Explanation:

Duetorstomes eggs ,During embryonic development the zygote undergoes cleavage. Cleavage results is slitting into multiple cells where ease cell has the ability to develop into a complete embryo when isolated.

6 0
3 years ago
In a certain plant, tall stems (t) are dominant to short stems (t). a farmer crosses a short-stemmed plant with a heterozygous l
melisa1 [442]

The answers would be:

Genotype                Phenotype

     Tt                      Tall stemmed

     tt                       Short stemmed

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

<u />

<u>You can read on to see how this was done:</u>

Tall stems (T) are dominant to short stems (t).

First figure out the genotypes of the parents. We have a short-stemmed plant and a heterozygous long-stemmed plant cross.

For short stem to occur, you need 2 pairs of short alleles. So the first parent would have a genotype of tt.

Heterozygous long-stemmed means that the parent has one of each allele. So the genotype of the second parent would be, Tt.

Now we can make our Punnett Square.

tt x Tt

<u>       t        t  </u>

<u>T |  Tt  |   Tt</u>

<u>t  |   tt  |   tt</u>

Let's list down the genotypes and phenotypic results.

Genotype        no.         Phenotype

     Tt                 2           Tall stemmed

     tt                  2           Short stemmed

So from that we can answer the other questions:

Genotypic ratio : 2:2 or 1:1

Phenotypic ratio: 2:2  or 1:1  

8 0
3 years ago
Small hairs on the legs of certain insects have the ability to detect chemicals. These hairs function as
andrew-mc [135]

Receptors is your answer.

Hope this helps, if not, comment below please!!!!

3 0
2 years ago
Read 2 more answers
If the sympathetic nervous system increases the production of saliva, the parasympathetic system _____. A. increases more B. dec
mario62 [17]
C. Increases peristalsis. 
5 0
3 years ago
_____ are chemical signals that, instead of being secreted into the bloodstream, are introduced by animals into their habitats.
Oduvanchick [21]
Pheromones is your answer. Pheromones are hormones that can act outside of the body - they they are mostly used by humans and insects in order to attract mates. There are several different pheromones, in fact, that have an effect on behavior.
5 0
3 years ago
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