some science questions:?

Question

1) Does a pumpkin have seeds?
2) which statements correct?
A:The tomato has both female and male parts.
B:it does not need to be pollinated.
C:the tomato fruit appears before the flower.
D:the stigma produces the pollen grains.

Answer 1

1) yes pumpkins have a lot of seeds.

2) A the tomato have both male and female parts
it has to be pollinated
The flower appears before the fruit
The stigma is part of the female part of the flower

Answer 2

As the pumpkin is a fruit (developing from the ovary of the flower), it's whole purpose is for reproducing the species, and, yes, it contains seeds - as do all fruits.

You may get some variations of this question on your test. Just remember:
The flower ALWAYS appears before the fruit;
The stigma is part of the FEMALE parts of the flower, connected with the ovary, in which are the ovules (kind of like the egg cells in humans);
The anther is the MALE part of the flower which produces the pollen (kind of like the sperm in humans).

Therefore C and D must be wrong.

B can be true for certain plants which can self-pollinate but they must also have male and female parts, so if you have a plant for which you can say B is true, you have to say that A is also true for it. So B cannot be true for a plant unless A is also true.

A is the correct answer.

Answer 3

1) yes
2) D