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How do you call animals that are born from their mothers’ womb.
Viviparous.
It's a radical change from larva to adult in an invertabrate.
Matamorphosis.
It is a group of ecosystems that share a similar climate and types of plants and animals.
A biome
It is the stage of human development from birth to about the age of twelve.
Childhood
Is any substance that has mass and takes up space.
Matter
Type of consumers that consume waste and carrion
Scavengers
It is the union of two cells, the spermatozoid and the ovum.
Fertilization
It is the stage of human development when the reproductive system matures.
Puberty
It is the transfer of pollen from the male part to the female part of flowers.
Pollination
Type of consumers that feed on other animals without killing them.
Parasites
What is an herbivore?
An animal that eats only plants.
Where does acid rain come from?
From the use of fossil fuels.
What is the name for twins that are not identical?
Fraternal twins
Type of consumers that eat only plants
Hervibore
Which substances does acid rain form?
Sulfuric and nitric acids.
Type of consumers that eat both plants and other animals.
Omnivores
Mention some oviparous animals.
Birds, reptiles, and fish.
How does a plant reproduce through asexual reproduction?
Through the stem or leaves.
In humans, when does the reproductive system mature?
It matures during puberty
What is a carnivore?
An animal that eats only meat.
These are visible physical characteristics that develop from puberty onward.
Secondary sexual characteristics.
What is the consequence of acid rain?
Damage of plant life
How many kinds of plant reproduction are there?
Sexual and asexual reproduction.
What climatic zones are there?
Tropical, polar, temperate, arid, and mediterranean.
Number the stages of life of invertebrates.
Egg, larva, pupa, and adult.
Mention the parts of an egg.
Shell, yolk, albumen, chalaza, and air cell.
What is an omnivore?
An animal that eats both plants and animals.
What are the stages of life?
Childhood, adolescence,maturity, and old age.
What is the process that results in identical twins being born?
They come from one fertilized egg that splits in two.
How many types of pollination are there?
There are two. Self-pollinate and cross-pollinate.
Give some examples of secondary sexual characteristics.
Deeper voice in men and wider hips in women.
What do producers do in an ecosystem?
Make their own food through photosynthesis
What are abiotic factors?
Abiotic factors are the nonliving parts of an ecosystem.
What are biotic factors?
Biotic factors are the living parts of an ecosystem.
What are consumers in an ecosystem?
Organisms that eat other living things.
These are some of the gases found in smog
Carbon dioxide, sulfur and nitrogen oxides
What does the excessive accumulation of greenhouse gases causes to the atmosphere?
A worldwide increase in temperature heat.
What is the main function of the digestive system?
To break down food and absorb nutrients.
What are the parts of the digestive system?
Mouth, esophagus, stomach, intestines and more
What is the difference between a vertebrate and an invertebrate?
Vertebrates have a backbone; invertebrates do not.
What is an ecosystem?
It is a community of living and nonliving things that live in and interact in a specific area.
Describe the process of cross-pollination
The pollen comes from another plant, carried by the wind or certain animals.
What is the difference between weather and climate?
Wheater is short-term atmospheric conditions; climate is the average over a long time.
The composition of soil is:
25% water, 25% air, 45% minerals and 5%organic matter.
What is a renewable resource?
A resource that can be replenished like sunlight or wind
What is a non-renewable resource?
A resource that cannot be easily replaced like coal or oil.
Natural phenomena that can alter a food system
Volcanic eruption, floods, droughts, glacial periods
How do leaves help a plant survive?
Leaves play a vital role in a plant’s survival because they are the main site of photosynthesis.
How does the heart pump blood in the human body?
The heart is a strong muscle that works like a pump, sending blood throughout our body.
Why do we see different phases of the Moon?
We see different phases of the Moon because of its orbit around the Earth and how sunlight hits it.