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Ghella [55]
3 years ago
14

Which of the following is true of fertilization in conifers? (2 points) The female cone releases its seeds and new gametophytes

grow. The male cone releases its seeds and new gametophytes grow. The female cone releases its seeds and new sporophytes grow. The male cone releases its seeds and new sporophytes grow.
Biology
1 answer:
9966 [12]3 years ago
3 0

Answer:

The correct answer would be "The female cone releases its seeds and new sporophytes grow".  

Conifers are sporophytes with two types of cones; pollen cones and ovulate cone.

The pollen cones are smaller in size and produce microspores which would develop into the pollen grains.

The ovulate cones are larger in size which produce megaspores which would develop into ovule.

The two gametes fertilized to produce a diploid zygote which develops into the embryo.

The fertilization takes place in the ovule and thus, embryo or seed is developed in the female cone.

The female cone then releases its seed which grows into a new sporophyte.

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The alpha and beta receptors are known as _________ receptors and are found at the ________ of the ________ division.
Law Incorporation [45]

Answer:

Adrenergic/effector/sympathetic

Explanation:

The two main divisions of autonomic nervous system are sympathetic nervous system and para sympathetic nervous system. This nervous system controls the involuntary actions of the body.

Adrenergic receptors are included in the G protein coupled receptors. Alpha and beat receptors are adrenergic receptors. These receptors are present on the effector molecule. Alpha and beta receptors are important during fight and flight response and are included in the sympathetic nervous system.

Thus, the correct answer is option (e).

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If we were to compare the cells in the plant leaves to the cells in the plant roots, we would expect the leaf cells to contain m
Gre4nikov [31]

The  correct answer is Chloroplast

The primary function of a leaf is photosynthesis and the chloroplast is the main site for photosynthesis. The rate of photosynthesis is much more in leaves as compared to that of roots. Chloroplast is the place where light and dark reactions takes place. Chloroplast contains a pigment called chlorophyll that absorbs light from the sun for the process of photosynthesis.

4 0
3 years ago
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Where do talbots sympathies lie does she believe that naming a single valedictorian is right or wrong?
MariettaO [177]

Answer:

Firstly:

Where do talbots sympathies lie?

Answer:

Talbot didn't provide clear and direct answer

Secondly:

does she believe that naming a single valedictorian is right or wrong?

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5 0
3 years ago
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A plate moves 200 m in 10,000 years. What is its rate in cm/year?
FromTheMoon [43]

Answer:

2cm/year

Explanation:

10,000 years = 200m

The question asks, what is its rate in cm per year?

So first we have to make sure the units are the same, i.e by changing the metres(m) to centimetres(cm)

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200m = (200x100) <em>20,000 cm</em>

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Now we divide the latter by the former. (cm/year) i.e, years by centimetres

20,000 ÷ 10,000 = 2

8 0
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