A describes a gymnosperm.
B describes any type of plant.
C is too vague to even describe a plant.
D (the correct answer) describes an angiosperm (flowering plant). After double fertilization, angiosperms form a fruit over the ovulary of the plant, where the seeds are located.
1. a wide variety of factors. heat, climate, weather, natural disasters that lower the population of prey animals, etc
2. well and example is this: it is getting hotter in Antarctica, causing the ice caps to melt. this change would make it harder for prey animals like penguins to find somewhere to live, thus making them easier food for predators. such as killer whales and polar bears.
3. the more trees we cut down to make room for buildings, for instance, causes many animals habitats to dissapear, the animals shortly after
I like cheese and concrete yum yum
Cell is the living blocks of life. They form the structural
and the functional unit of our life, that is a group of cell
forms tissue, a group of tissue forms organ, a group of
organs form organ system and finally a group of organ
systems form a complete organism / individual.
And there are two types of cell
1/ eukaryotic cell ( consists of the plant cell and the animal
cell )
2/ prokaryotic cell (... I don't know man )
Red blood cells transport oxygen throughout the body platelets aid in blood clotting and white blood cells help destroy and remove old cells and foreign substances. This is an example of how cells origin from the same cell (hematopoietic cell in the bone marrow) and then differentiate.
Hematopoietic stem cells are blood-forming stem cells. During hematopoiesis the hematopoietic stem cell divides via mitosis. As a result of mitosis, one daughter cell remains in the bone marrow to continue renewing the hematopoietic stem cells pool while the other goes through next stages of development. Maturate blood cell (red, white or platelet) to leave the bone marrow and enters the circulation.
